On Mon, Nov 14, 2011, Avi Kivity wrote about Re: [PATCH 02/10] nEPT: MMU
context for nested EPT:
+#if PTTYPE == EPT
+real_gfn = mmu-translate_gpa(vcpu,
gfn_to_gpa(table_gfn),
+ EPT_WRITABLE_MASK);
+#else
On Sun, Nov 13, 2011, Orit Wasserman wrote about Re: [PATCH 02/10] nEPT: MMU
context for nested EPT:
+++ b/arch/x86/kvm/mmu.h
@@ -48,6 +48,11 @@
#define PFERR_RSVD_MASK (1U 3)
#define PFERR_FETCH_MASK (1U 4)
+#define EPT_WRITABLE_MASK 2
+#define EPT_EXEC_MASK 4
This is another
On 12/07/2011 11:06 AM, Nadav Har'El wrote:
On Sun, Nov 13, 2011, Orit Wasserman wrote about Re: [PATCH 02/10] nEPT: MMU
context for nested EPT:
+++ b/arch/x86/kvm/mmu.h
@@ -48,6 +48,11 @@
#define PFERR_RSVD_MASK (1U 3)
#define PFERR_FETCH_MASK (1U 4)
+#define
On Sun, Nov 13, 2011, Avi Kivity wrote about Re: [PATCH 02/10] nEPT: MMU
context for nested EPT:
On 11/13/2011 01:30 PM, Orit Wasserman wrote:
Maybe this patch can help, this is roughly what Avi wants (I hope) done
very quickly.
I'm sorry I don't have setup to run nested VMX at the moment
On 12/06/2011 02:40 PM, Nadav Har'El wrote:
On Sun, Nov 13, 2011, Avi Kivity wrote about Re: [PATCH 02/10] nEPT: MMU
context for nested EPT:
On 11/13/2011 01:30 PM, Orit Wasserman wrote:
Maybe this patch can help, this is roughly what Avi wants (I hope) done
very quickly.
I'm sorry
On 11/23/2011 05:44 PM, Nadav Har'El wrote:
On Wed, Nov 23, 2011, Nadav Har'El wrote about Re: [PATCH 02/10] nEPT: MMU
context for nested EPT:
+static int nested_ept_init_mmu_context(struct kvm_vcpu *vcpu)
+{
+ int r = kvm_init_shadow_mmu(vcpu, vcpu-arch.mmu);
+
+ vcpu
On Sun, Nov 13, 2011, Orit Wasserman wrote about Re: [PATCH 02/10] nEPT: MMU
context for nested EPT:
Maybe this patch can help, this is roughly what Avi wants (I hope) done very
quickly.
I'm sorry I don't have setup to run nested VMX at the moment so i can't test
it.
Hi Orit, thanks
On Wed, Nov 23, 2011, Nadav Har'El wrote about Re: [PATCH 02/10] nEPT: MMU
context for nested EPT:
+static int nested_ept_init_mmu_context(struct kvm_vcpu *vcpu)
+{
+ int r = kvm_init_shadow_mmu(vcpu, vcpu-arch.mmu);
+
+ vcpu-arch.nested_mmu.gva_to_gpa = EPT_gva_to_gpa_nested
On 11/13/2011 08:26 PM, Orit Wasserman wrote:
int kvm_mmu_get_spte_hierarchy(struct kvm_vcpu *vcpu, u64 addr, u64
sptes[4]);
void kvm_mmu_set_mmio_spte_mask(u64 mmio_mask);
int handle_mmio_page_fault_common(struct kvm_vcpu *vcpu, u64 addr, bool
direct);
diff --git
On 11/12/2011 11:37 PM, Nadav Har'El wrote:
On Sat, Nov 12, 2011, Avi Kivity wrote about Re: [PATCH 02/10] nEPT: MMU
context for nested EPT:
host may write-protect a page. Second, the shadow and guest ptes may be
in different formats (ept vs ia32).
I'm afraid I've lost you here
On 11/12/2011 11:37 PM, Nadav Har'El wrote:
On Sat, Nov 12, 2011, Avi Kivity wrote about Re: [PATCH 02/10] nEPT: MMU
context for nested EPT:
host may write-protect a page. Second, the shadow and guest ptes may be
in different formats (ept vs ia32).
I'm afraid I've lost you here
On 11/13/2011 01:30 PM, Orit Wasserman wrote:
Maybe this patch can help, this is roughly what Avi wants (I hope) done very
quickly.
I'm sorry I don't have setup to run nested VMX at the moment so i can't test
it.
Orit
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index
On 11/13/2011 04:32 PM, Avi Kivity wrote:
On 11/13/2011 01:30 PM, Orit Wasserman wrote:
Maybe this patch can help, this is roughly what Avi wants (I hope) done very
quickly.
I'm sorry I don't have setup to run nested VMX at the moment so i can't test
it.
Orit
diff --git
On 11/10/2011 10:05 PM, Nadav Har'El wrote:
On Thu, Nov 10, 2011, Avi Kivity wrote about Re: [PATCH 02/10] nEPT: MMU
context for nested EPT:
This is all correct, but the code in question parses the EPT12 table
using the ia32 page table format. They're sufficiently similar so
On Sat, Nov 12, 2011, Avi Kivity wrote about Re: [PATCH 02/10] nEPT: MMU
context for nested EPT:
host may write-protect a page. Second, the shadow and guest ptes may be
in different formats (ept vs ia32).
I'm afraid I've lost you here... The shadow table and the to-be-shadowed
table are both
KVM's existing shadow MMU code already supports nested TDP. To use it, we
need to set up a new MMU context for nested EPT, and create a few callbacks
for it (nested_ept_*()). We then need to switch back and forth between this
nested context and the regular MMU context when switching between L1 and
On 11/10/2011 11:58 AM, Nadav Har'El wrote:
KVM's existing shadow MMU code already supports nested TDP. To use it, we
need to set up a new MMU context for nested EPT, and create a few callbacks
for it (nested_ept_*()). We then need to switch back and forth between this
nested context and the
On 11/10/2011 11:58 AM, Nadav Har'El wrote:
KVM's existing shadow MMU code already supports nested TDP. To use it, we
need to set up a new MMU context for nested EPT, and create a few callbacks
for it (nested_ept_*()). We then need to switch back and forth between this
nested context and the
On Thu, Nov 10, 2011, Avi Kivity wrote about Re: [PATCH 02/10] nEPT: MMU
context for nested EPT:
+static int nested_ept_init_mmu_context(struct kvm_vcpu *vcpu)
+{
+ int r = kvm_init_shadow_mmu(vcpu, vcpu-arch.mmu);
...
+ vcpu-arch.walk_mmu = vcpu-arch.nested_mmu
On 11/10/2011 04:40 PM, Nadav Har'El wrote:
On Thu, Nov 10, 2011, Avi Kivity wrote about Re: [PATCH 02/10] nEPT: MMU
context for nested EPT:
+static int nested_ept_init_mmu_context(struct kvm_vcpu *vcpu)
+{
+ int r = kvm_init_shadow_mmu(vcpu, vcpu-arch.mmu);
...
+ vcpu
On Thu, Nov 10, 2011, Avi Kivity wrote about Re: [PATCH 02/10] nEPT: MMU
context for nested EPT:
This is all correct, but the code in question parses the EPT12 table
using the ia32 page table format. They're sufficiently similar so that
it works, but it isn't correct.
Bit 0: EPT readable
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